CN217579572U - Efficient resonance rubble construction structure for old cement pavement - Google Patents
Efficient resonance rubble construction structure for old cement pavement Download PDFInfo
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- CN217579572U CN217579572U CN202122182226.6U CN202122182226U CN217579572U CN 217579572 U CN217579572 U CN 217579572U CN 202122182226 U CN202122182226 U CN 202122182226U CN 217579572 U CN217579572 U CN 217579572U
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- 239000004568 cement Substances 0.000 title claims abstract description 29
- 238000010276 construction Methods 0.000 title claims abstract description 25
- 239000010410 layer Substances 0.000 claims abstract description 100
- 239000010426 asphalt Substances 0.000 claims abstract description 56
- 239000002344 surface layer Substances 0.000 claims abstract description 32
- 230000007704 transition Effects 0.000 claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- 239000011384 asphalt concrete Substances 0.000 claims description 13
- 239000004575 stone Substances 0.000 claims description 13
- 239000012790 adhesive layer Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 239000002002 slurry Substances 0.000 abstract description 6
- 230000006872 improvement Effects 0.000 abstract description 5
- 238000005336 cracking Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000000087 stabilizing effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 12
- 239000004567 concrete Substances 0.000 description 11
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- 238000012546 transfer Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses an efficient resonance rubblization construction structure for an old cement pavement, which comprises an asphalt surface layer, a bonding layer and a resonance rubblization surface layer; the bonding layer is arranged between the asphalt surface layer and the resonance rubblization surface layer; the asphalt surface layer comprises a soft layer, a force transmission transition layer and an asphalt bearing layer; the force transmission transition layer is arranged between the soft layer and the asphalt bearing layer; the soft layer is in contact with the outside, and the asphalt bearing layer is in contact with the bonding layer; by the structure, the resonance macadam layer and the asphalt macadam stabilizing layer are combined through slurry to form a rigid-flexible structure characteristic, so that an asphalt surface layer and a roadbed can be completely compatible, the asphalt surface layer structure is prevented from being damaged due to fatigue cracking, and the service life of a pavement is prolonged; simultaneously, the improvement quality on road surface can be improved to the rigid and flexible connection longitudinal joint between this structure and the original structure on road surface.
Description
Technical Field
The utility model relates to a road traffic field, mainly used old cement concrete pavement adds during the engineering of laying the pitch surface course, especially relates to a high-efficient resonance rubble stone or animal chemical industry construction structures in old cement pavement.
Background
Since the reform is opened, the highway traffic in China develops rapidly, and the highway traffic becomes an important traffic facility for supporting the economic development in China. At present, the road traffic development of China is more perfect, but the road traffic development of China cannot completely meet the requirement for building a socialist modernization strong country, and the road development and the automobile transportation development are still not coordinated. Meanwhile, with the development of economy and the improvement of the living standard of people, the automobile holding capacity is greatly increased, which brings great pressure to road traffic.
The asphalt concrete pavement has the advantages of smooth surface, no joint, wear resistance, comfortable driving, short construction period, simple maintenance and the like. In the highway construction at the present stage of China, the pavement material is mainly asphalt concrete. The history of paving asphalt concrete pavements in China is very short, only over ten years ago, the asphalt pavements in China also take surface treatment, penetration pavements and asphalt macadam pavements as main forms, and the asphalt concrete pavements are once more the main forms of asphalt pavements with the development of high-grade highway construction. In the established asphalt concrete pavement of the expressway, the use conditions of most of the pavement are better, but due to the reasons that the construction of the expressway in China starts late, the technical force reserve is less, the climate conditions in China are complex, the traffic load conditions are severe, the overload of vehicles is serious and the like, the paved road pavement structure has various problems, for example, the construction level of some road sections is unsatisfactory, and even serious diseases such as rutting, cracking, water permeation and the like occur in the last few years of traffic, so that the large-scale maintenance is forced to be carried out, and the waste of manpower, material resources and financial resources is caused. However, in the maintenance process, the concepts of quality improvement, comprehensive conservation, environmental protection utilization and the like are perfectly integrated, so that more economical and effective reconstruction technology and method are provided, and the method is a great engineering problem which puzzles the highway management department.
At present, the resonance rubble is the most common road surface reconstruction scheme at home and abroad, and the resonance phenomenon is generated between the old cement concrete road surface and a crushing machine through the resonance principle, so that the old cement concrete road surface is crushed into a cement concrete rubble particle layer with an upper layer mutually embedded and extruded and a lower layer mutually embedded and locked. The crushed broken stones are adjacent and complementary in shape and small in particle size, a stable structure which is mutually embedded and extruded is formed, horizontal and vertical displacement of the original cement concrete pavement slab at cracks and joints is solved, stress of upward reflection of the original slab cracks is eliminated, the strength and rigidity of the layer are higher than those of graded broken stones, meanwhile, the influence on an old pavement foundation is small, and the method is an effective means for solving the problem that reflection cracks are easy to occur when the cement concrete pavement is additionally paved.
The resonance rubblization process for the old cement concrete pavement, disclosed in CN202011627870.3, is characterized in that the pavement structure is optimized without damaging the original pavement base layer, the rigid surface layer is changed into a flexible surface layer, and repeated repair is avoided, so that the service life of the pavement is prolonged.
The breaking technology of the old cement concrete pavement in China starts late, the highway administration of the traffic hall in Shandong province introduces the resonance rubble technology at the 2002 year rate and starts to be popularized and used in China, but the pavement damage conditions are different, so that the efficient resonance rubble construction method aiming at the damage condition of the old cement concrete pavement is a problem which needs to be solved urgently in the field of highway engineering in China.
SUMMERY OF THE UTILITY MODEL
To above-mentioned problem, this scheme has provided a high-efficient resonance rubble petrochemical industry construction structures in old cement road surface. The problem of the maintenance of local disease road surface difficulty in current is solved to the problem of the hard and soft connection of old cement road surface and bituminous paving takes the longitudinal joint has been solved.
The scheme is realized as follows:
an efficient resonance rubblizing construction structure for an old cement pavement comprises an asphalt surface layer, a bonding layer and a resonance rubblizing surface layer; the adhesive layer is arranged between the asphalt surface layer and the resonance rubblizing surface layer.
Based on the efficient resonance rubblization construction structure of the old cement pavement, the asphalt surface layer comprises a soft layer, a force transmission transition layer and an asphalt bearing layer; the force transmission transition layer is arranged between the soft layer and the asphalt bearing layer; the soft layer is in contact with the outside, and the asphalt holding layer is in contact with the bonding layer.
Based on the efficient resonance rubblization construction structure for the old cement pavement, the soft layer is SMA-13 modified asphalt concrete, and the thickness of the soft layer is 3-5cm.
Based on the efficient resonance rubblization construction structure for the old cement pavement, the force transfer transition layer is paved by AC-20C medium-grain asphalt concrete, and the thickness of the force transfer transition layer is 4-7cm.
Based on the efficient resonance rubblization construction structure of the old cement pavement, the asphalt bearing layer is an ATB-25 dense-graded asphalt stable rubble layer; the thickness of the asphalt bearing layer is 6-15cm.
Based on the efficient resonance rubblization construction structure of the old cement pavement, the bonding layer is SBR modified emulsified asphalt; the thickness of the adhesive layer was 0.08cm.
Based on above-mentioned high-efficient resonance rubble stone chemical construction structures in old cement road surface, the whole thickness of pitch surface course, tie coat and resonance rubble stone chemical surface course is not less than 30cm.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the structure adopts the technical scheme that a resonance stone crusher is used for carrying out resonance treatment on part of damaged road sections of a good road surface to form a stable structure functional layer which is mutually locked up and down; the strength rigidity and the resilience modulus of the resonant rubble layer are higher than those of the graded rubble layer; in addition, the resonance gravel layer and the asphalt gravel stabilizing layer are combined through slurry to form a rigid-flexible structure characteristic, so that the asphalt pavement and the roadbed can be completely compatible, the asphalt pavement structure is prevented from being damaged due to fatigue cracking, and the service life of the pavement is prolonged; simultaneously, the improvement quality on road surface can be improved to the rigid and flexible connection longitudinal joint between this structure and the original structure in road surface.
Drawings
Fig. 1 is a schematic structural view of the whole of the present invention;
in the figure: 1. a soft layer; 2. a force transfer transition layer; 3. an asphalt bearing layer; 4. a bonding layer; 5. a resonant rubblized facing.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Example 1
Referring to fig. 1, the present invention provides a technical solution:
an efficient resonance rubblization construction structure for an old cement pavement comprises an asphalt surface layer, a bonding layer and a resonance rubblization surface layer; the bonding layer is arranged between the asphalt surface layer and the resonance rubblizing surface layer;
the asphalt surface layer comprises a soft layer, a force transmission transition layer and an asphalt bearing layer; the force transmission transition layer is arranged between the soft layer and the asphalt bearing layer; the soft layer is in contact with the outside, so that enough large friction force can be generated, and vehicles or skid resistance can be prevented; the asphalt bearing layer is in contact with the bonding layer,
the force transmission transition layer is used for transmitting the internal force between the soft layer and the asphalt bearing layer;
the asphalt bearing layer enables the pavement of the asphalt bearing layer to have stronger rigidity, good stability and stronger deformation resistance;
the soft layer is paved by SMA-13 modified asphalt concrete, the thickness of the soft layer is 3-5cm, the pavement flatness is detected by methods such as a three-meter direct delay method and the like, the pavement flatness is ensured, and meanwhile, the requirements of strong softening property and deformation capacity are met, and rutting can be reduced;
the force transfer transition layer is paved by AC-20C medium-grain asphalt concrete, the thickness of the force transfer transition layer is 4-7cm, and the soil-based resilience modulus value of the rubble road section is measured by a bearing plate method and the like, so that the elasticity is high, and the force transfer effect is strong.
The asphalt bearing layer is paved by adopting an ATB-25 dense-graded asphalt stabilized gravel layer; the thickness of the asphalt bearing layer is 6-15cm; the pavement has the advantages of stronger rigidity, good stability, stronger deformation resistance and the like.
The bonding layer is SBR modified emulsified asphalt; the thickness of the adhesive layer is 0.08cm
The construction method of the construction structure comprises the following steps:
firstly, determining the damage position and thickness of a road surface by a ground penetrating radar, selecting a resonance device to carry out resonance crushing on the old cement concrete road surface, forming broken stone blocks below 5cm by resonance rubblization treatment, manually excavating the broken blocks more than 5cm, and backfilling by using continuous graded broken stones to form a graded broken stone layer with the thickness of 1/4 of the thickness of an old cement concrete foundation layer. After the road rubblization is finished, core drilling sampling is carried out, a screening test is carried out on the sample, and the particle composition is compared with the upper limit and the lower limit of the crushed stone or gravel to ensure that the particle composition is excellent.
Laying a layer of slurry above the crushed stone layer, wherein the slurry needs to be sprayed by an asphalt spraying vehicle, and an appropriate nozzle is selected, so that the spraying speed and the spraying amount are kept stable; when the temperature is lower than 10 ℃ and the road surface is wet, slurry cannot be sprayed; the slurry is sprayed mainly to bond the resonance rubblized surface layer and the asphalt stabilized rubble layer above the resonance rubble surface layer together to form a flexible base layer with stronger deformation resistance, and the specific paving thickness is determined according to the actual deformation condition of the pavement;
paving an asphalt surface layer, wherein the asphalt surface layer is generally divided into 3 layers, the upper surface layer is a soft layer, SMA-13 modified asphalt concrete of about 3-5cm is used for paving, the pavement is subjected to flatness detection by methods such as a three-meter direct delay method and the like, the pavement is ensured to be flat, and meanwhile, the requirements on high softening property and high deformability are met, so that rutting can be reduced; the friction force is large, and the skid resistance of the vehicle is prevented. The middle surface layer is a force transmission transition layer, is paved by using AC-20C medium-grain asphalt concrete with the thickness of 4-7cm, and measures the soil matrix resilience modulus value of the rubble road section by a bearing plate method and other methods, so that the elasticity is high and the force transmission effect is strong. The lower layer is an asphalt bearing layer and is paved by using an ATB-25 dense-graded asphalt stabilized gravel layer with the thickness of 6-15cm, so that the pavement has the advantages of stronger rigidity, good stability, stronger deformation resistance and the like.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (4)
1. The utility model provides a high-efficient resonance rubble stone chemical construction structures in old cement road surface which characterized in that: comprises an asphalt surface layer, a bonding layer and a resonance rubblizing surface layer; the bonding layer is arranged between the asphalt surface layer and the resonance rubblization surface layer; the asphalt surface layer comprises a soft layer, a force transmission transition layer and an asphalt bearing layer; the force transmission transition layer is arranged between the soft layer and the asphalt bearing layer; the soft layer is in contact with the outside, and the asphalt bearing layer is in contact with the bonding layer; the soft layer is SMA-13 modified asphalt concrete, and the thickness of the soft layer is 3-5cm; the asphalt bearing layer is an ATB-25 dense-graded asphalt stable crushed stone layer; the thickness of the asphalt bearing layer is 6-15cm.
2. The efficient resonance rubblization construction structure for the old cement pavement according to claim 1, which is characterized in that: the force transmission transition layer is laid by AC-20C medium-grain asphalt concrete, and the thickness of the force transmission transition layer is 4-7cm.
3. The efficient resonance rubblization construction structure for old cement pavements according to claim 1, characterized in that: the bonding layer is SBR modified emulsified asphalt; the thickness of the adhesive layer was 0.08cm.
4. The efficient resonance rubblization construction structure for old cement pavements according to claim 1, characterized in that: the integral thickness of the asphalt surface layer, the bonding layer and the resonance rubblization surface layer is not less than 30cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122182226.6U CN217579572U (en) | 2021-09-09 | 2021-09-09 | Efficient resonance rubble construction structure for old cement pavement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122182226.6U CN217579572U (en) | 2021-09-09 | 2021-09-09 | Efficient resonance rubble construction structure for old cement pavement |
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| Publication Number | Publication Date |
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| CN217579572U true CN217579572U (en) | 2022-10-14 |
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| CN202122182226.6U Active CN217579572U (en) | 2021-09-09 | 2021-09-09 | Efficient resonance rubble construction structure for old cement pavement |
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- 2021-09-09 CN CN202122182226.6U patent/CN217579572U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: CCCC infrastructure maintenance Group Engineering Co.,Ltd. Assignor: CCCC INFRASTRUCTURE MAINTENANCE GROUP CO.,LTD. Contract record no.: X2023980051367 Denomination of utility model: A high-efficiency resonant crushed stone construction structure for old cement pavement Granted publication date: 20221014 License type: Common License Record date: 20231211 |
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| EE01 | Entry into force of recordation of patent licensing contract |